Boning knife



vPatented Aug. 18, 1942 UNITED STATES PATENT oFFicE walter P. Fenner, st. Louis, Mo. 4 Application Jhllly 29, 1940, Serial N0. 316,062

1 Claim.

'I'his Iinvention relates to a certain new and useful improvement in boning tools or knives.

The invention has for its object the provision, as a new article of manufacture, of a tool in the form of a suitably handled blade uniquely toothed, edged, and shaped for especially, though 'not exclusively, the facile boning of so-called hams 'Ihe invention has for a further object the provision' of a tool or knife of the type and for the purpose stated which is' simple in structure, which may be cheaply manufactured, which is conveniently usable, and which is exceedingly eilicient in the performance of its intended. functions.

And with the above and other objects in view, my `invention resides in the novel features of form, construction, arrangement, and combination of parts presently described and pointed out in the claim. f

In the accompanying drawing- Figure 1-is a plan or edge view of the tool or knife of my invention;

Figure 2 is a side elevational view of the knife;

Figure 3 sectionaily pictures a ham for boning"; and

Figure 4 shows a section of the ham from which removal of the bone has been effected through employment of the knife of my invention.

Referring now more in `detail and by reference characters to the drawing.. which illustrates a preferred embodiment of my invention, the boning knife initially includes a suitably elongated substantially oblong-rectangular strip of suitable metal shaped to integrally comprise a blade A Aand a longitudinal extension B, to which latter a suitable handle C is riveted or otherwise permanently ilxed, the blade A and its handled portion or shank B being sized for 'convenient manual manipulation.

Along one .longitudinal margin, the blade A is ground to, or otherwise fo'rmed with, a sharp cutting edge I, and along its opposite longitudinal margin, the blade A is suitably provided with a series of saw-teeth 2, all of which are disposed in the same longitudinal plane and slope or incline in the same direction, somewhat in the nature of a rip saw.

At its free end and forwardly from its opposite longitudinal margins, the blade A is suitably ground to, or otherwise formed with sharp edges la and 3, which converge into a relatively sharp point, as at 4, presented forwardly in a plane approximately midway between the planes of the honing gently lengthwise roudedfand merging into or being continuous with the edge I and the edge 3 obliquely connecting or joining the teeth 2 and point 4, all as best seen in Figure 2.

Now, in use, as in boning the ham, Hillus' trated in Figure 3, a transverse kerf, as at K, is rst made in the ham by means of the cutting edge I, such kerf K being located adjacent, and extending merely down to, an intermediate or second bone knuckle' 5, as shown. The tool is then removed from the ham" and reversed upon itself, and through employment of the toothed edge 2 of the blade, the kerf K is completed through the bone 1, ther cutting-edges i, `I a, and 3 of the knife greatly facilitating the undulations and reciprocations of the blade A in the relatively soft meat of the ham H in and during such bone cutting operation actual bone cutting being effected only on the so-called forward strokes of the blade through and relatively to the ham H.

Then, by the cutting-edge I, a second kerf K is transversely made in the ham H in suitably spaced relation to the first kerf K and more or less adjacent the end or first Vbone knuckle 6, as also shown. Then the tool is reversed upon itself, and again through employment of the toothed edge 2 of the blade, the kerf K completed through the bond 1, as lindicated, the cutting-edges I, la and 3 again greatly facilitating thundulations and,reciprocations of the blade A in the relatively soft meat of the ham H in and 'during such bone cutting operation and actual bone cutting likewise being effected only on the so-called forward strokes of the blade edge I and teeth 2, the edge la being preferably through and relatively to the ham H. V

The bone 'I being thus divided along the kerf K', the end-portion h ofthe ham is totally severed from the remaining portion thereof.,

Then, on sufficient separating end pull being applied upon the severed or divided bone-portion :2, lthe remaining portionh' of the ham H is entirely relieved from the bone 1 and may then be easily and profitably sliced for consumption.

Thus my new blade fulfills in every respect the objects stated, and it is to be `understood'that changes in the form, construction, arrangement, and combination of the several parts of the knife may be made and substituted for those herein shown and described without departing from lthe nature and principle of my invention.v

Having thus described my invention, what I claim and desire to secure by Letters Patent is As a new article of manufacture, a boningknife including an approximately oblong-rectangular blade fiat and smooth upon its opposite side faces and provided with a cutting-edge along one longitudinal margin, a series of saw-teeth along its opposite longitudinal margin,-a.nd a cutting point in its forward end approximately cen- Y muy intermediate the longitudinal pmnes of said edge and teeth. said longitudinal cuttingedge being uninterruptedly Joined to, and communicating with. said point in a lgently rounded cutting-edge continuation and said teeth being set in the direction oi', and by an obliquely disposed cutting edge oppositeiy Joined to and com- 5 municating with, said pointf WALTER P. FENNEB. 

